Improvement in life-boats



'PHILIP HEINRICH, ALLEGHENY CITY, PENNSYLVANIA.

Leners Patent No.' 102,261, dated Apta 26, 1870.

IMPROVEMem* 1N LIFE-BOATS.

The Schedule referred to in there Lettera Patent and vmakzlngparl: o! the lama I, PHILIP HE1NRICH,. of the city and county of Allegheny, of the State of Pennsylvania, have invented certain Improvements in Life-Boats, of which t the following isa specification.

Nature and Objects of the Invention.

The first part of my invention consists of a hull formed in about the shape and, proportion of the accompanying drawing.

This hull is encompassed by a hollow square girdle,

" containing a certain, amount of air, which acts as a counter-pressure against the weight it is intended to carry.

I also have on each extreme end of the hull two hollow spaces, which can' be used to carry valuables, provisions, and water.

I further place two hollow sea s, that is, one op each side of the inner partof the hull.

These seats are so constructed as to contain a cerf tain amount of air, or they can be used for provisions a so.

The second part of my invention is in the balance weight, which is brought into use by a conical hollow tube. This'tube is fastened to about the .center of the hull bottom in a vertical direction, the weight being .fastened to a' chain of proper length andis drawn through this' tube, which caube regulated so as to leave it downin case of necessity, orto draw it np into this tube, which is wide enough below for the purpose of keeping `it out of water on account of speed and movement, Awhen such is desired.

This weight, at a short distance, suspended below the bottom of the hull, in combination with the air*-` girdle, will render it impossible to overthrow the boat, even in the highest gale.

Description of Drawing. Figure l is a side elevation o f my invention. YFigure 2 represents'the interior of the air-girdle.

Figure 3 represents the interior of the hull-girdle and seats.

Figure 4 represents the interior of the' water and provision chamber. l

Figure 5 represents the balance-weight andtube.

General Description. A is the hullof the boat, which is constructed of forth'.

sheet-iron, or any other material as substitute thereof,

tightly riveted so as to make it both water and airtight. t, l A,

B is the girdle or hollow conductor which runs parallel with the outside of the hull A, and is so constructed that it is divided into a number of cellsor air-tight apartments, G C C, so that when one part of the girdles is damaged the other remains air-tight,

thus rendering the boat moresaie.

D D are those air-tight inclosures or chambersat the extreme ends ofthe hull, which also act as a resisting power, at the same time that they can be used as safe keepers for valuables, provisions, and water.

These chambers form a part of the deck, and are provided with air-tight openings E E.

One or both chambers arel provided with aseparateA l .water-reservoir, F, provided with anl inlet, G, and an outlet, H, l

I I are those inclosures which form the seats.

These seatsrun-parallel with the length of the hull andare also divided into air-tightcells orapartments, and they can also be used for carrying provisions, being provided with air-tight openings'at K.

L is the cone-tube, which stands Yerect on the botofthe hull.

The weight M is attached to chain N.

This chain is provided with ring O, for the purpose of drawing up-the weight in case of necessity, as, by leaving the weight M down, the boat becomes more securely balanced in case of high gaies; and by drawing up the weight M into the tube' L the motion of the boat will not be interfered with.

' Ola/im.

I claim as myl inventionwith the weights M and tube L, with chain attach-f ment, substantially as and for the purpose herein set PHILIP HEINRICH,

lVitnesses:

FELIX MANZ, y JAMES S. GRINNELL. 

